Approx appLS15I, Руководство по настройке

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1D Barcode Scanner Setting Manual
V1.10
Chapter5 Serial Communication Instruction
Instruction
When using the serial port mode, the barcode reader can control the barcode scanner to
send commands or set related functions by sending relevant instructions.
Serial instruction is fixed to 16 bytes in one frame（16bytes，1byte=8bit）.
Frame format structure
Serial port instruction one frame format is as follows：
STX+CMD+DA0+DA1+DA2+DA3+DA4+DA5+DA6+……+DA10+DA11+ETX+SUM
To ensure data accuracy, the last byte of a frame of data (16 bytes) is the checksum,
assuming that the first 15 bytes are a, and then SUM = 256 - (a & 0xFF).
Among them：
STX=0x02; ETX=0x03 （STX and ETX values are ASCII hexadecimal defined values.）
CMD represents a control or setup instruction.
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